.\" This documentation was generated from the book titled "The Linux Kernel API", which is part of the Linux kernel source. .\" .\" This documentation comes with the following legal notice: .\" .\" This documentation is free software; you can redistribute .\" it and/or modify it under the terms of the GNU General Public .\" License as published by the Free Software Foundation; either .\" version 2 of the License, or (at your option) any later .\" version. .\" .\" This program is distributed in the hope that it will be .\" useful, but WITHOUT ANY WARRANTY; without even the implied .\" warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. .\" See the GNU General Public License for more details. .\" .\" You should have received a copy of the GNU General Public .\" License along with this program; if not, write to the Free .\" Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, .\" MA 02111-1307 USA .\" .\" For more details see the file COPYING in the source .\" distribution of Linux. .\" .\" For comments on the formatting of this manpage, please contact Michael Still .\" This manpage has been automatically generated by docbook2man .\" from a DocBook document. This tool can be found at: .\" .\" Please send any bug reports, improvements, comments, patches, .\" etc. to Steve Cheng . .TH "SKB_COPY" "9" "13 April 2004" "" "" .SH NAME skb_copy \- create private copy of an sk_buff .SH SYNOPSIS .sp \fB .sp struct sk_buff * skb_copy (const struct sk_buff * \fIskb\fB, int \fIgfp_mask\fB); \fR .SH "ARGUMENTS" .TP \fB\fIskb\fB\fR buffer to copy .TP \fB\fIgfp_mask\fB\fR allocation priority .SH "DESCRIPTION" .PP Make a copy of both an &sk_buff and its data. This is used when the caller wishes to modify the data and needs a private copy of the data to alter. Returns NULL on failure or the pointer to the buffer on success. The returned buffer has a reference count of 1. .PP As by-product this function converts non-linear &sk_buff to linear one, so that &sk_buff becomes completely private and caller is allowed to modify all the data of returned buffer. This means that this function is not recommended for use in circumstances when only header is going to be modified. Use \fBpskb_copy\fR instead. .SH "ABOUT THIS DOCUMENT" .PP This documentation was generated with kernel version 2.6.1.